Intermittent very slow response times

Forums › 2degrees (including Slingshot, Orcon, Flip, Stuff Fibre, MyRepublic, 2talk and Vocus) › Intermittent very slow response times - Orcon Genius

bwen

18 posts

Geek
+1 received by user: 1

#133864 5-Nov-2013 20:26

Hi,

We have a standard Orcon Genius ADSL connection. Generally our speeds are fine, however during the last couple of weeks we've encountered real slow downs where the internet is either super slow, or effectively unusable (problem exists generally for approx 20mins - 2hours duration).

Our modem syncs with the following:

Actual Data Rate
1009 (Kbps.) 14259 (Kbps.)

Noise Margin
13 dB 12 dB

Attenuation
8 dB 14 dB

Connection doesn't drop during these issues. Modem restarts (hard and soft), resets etc make no difference. Can re-sync and re-connect with no problems on restart, have tried Google DNS servers (no difference) and can't think of anything else. Doesn't seem like general network congestion as it's a sudden huge drop in network response speed and then an equally sudden jump back to normal speed after a random period of time.

I'm ChCh based - so nothing to do with recent Wgtn auth issues I assume. Just wondering if anyone else has incurred similar symptoms lately or perhaps knows if there is something going on behind the scenes with the Orcon Genius network that might be causing these issues.

Below are some example pings during a slowdown (can be as slow as > 1500ms response):

ping orcon.net.nz
PING orcon.net.nz (60.234.4.77): 56 data bytes
64 bytes from 60.234.4.77: icmp_seq=0 ttl=61 time=473.314 ms
64 bytes from 60.234.4.77: icmp_seq=1 ttl=61 time=519.187 ms
64 bytes from 60.234.4.77: icmp_seq=2 ttl=61 time=379.647 ms
64 bytes from 60.234.4.77: icmp_seq=3 ttl=61 time=396.280 ms
64 bytes from 60.234.4.77: icmp_seq=4 ttl=61 time=502.838 ms
64 bytes from 60.234.4.77: icmp_seq=5 ttl=61 time=525.679 ms

ping google.co.nz
PING google.co.nz (60.234.81.163): 56 data bytes
64 bytes from 60.234.81.163: icmp_seq=0 ttl=61 time=335.997 ms
64 bytes from 60.234.81.163: icmp_seq=1 ttl=61 time=293.689 ms
64 bytes from 60.234.81.163: icmp_seq=2 ttl=61 time=490.486 ms
64 bytes from 60.234.81.163: icmp_seq=3 ttl=61 time=449.877 ms
64 bytes from 60.234.81.163: icmp_seq=4 ttl=61 time=407.113 ms

And an example when all is fine:

ping orcon.net.nz
PING orcon.net.nz (60.234.4.77): 56 data bytes
64 bytes from 60.234.4.77: icmp_seq=0 ttl=61 time=34.360 ms
64 bytes from 60.234.4.77: icmp_seq=1 ttl=61 time=31.242 ms
64 bytes from 60.234.4.77: icmp_seq=2 ttl=61 time=30.095 ms
64 bytes from 60.234.4.77: icmp_seq=3 ttl=61 time=31.074 ms

Thanks for your time!

PeterReader

6028 posts

Uber Geek
+1 received by user: 461

Trusted

Geekzone

Lifetime subscriber

#927847 5-Nov-2013 20:26

Hello... Our robot found some keywords in your post, so here is an automated reply with some important things to note regarding broadband speeds.

If you are posting regarding DSL speeds please check that

- you have reset your modem and router

- your PC (or other PCs in your LAN) is not downloading large files when you are testing

- you are not being throttled by your ISP due to going over the monthly cap

- your tests are always done on an ethernet connection to the router - do not use wireless for testing

- you read this topic and follow the instructions there.

Make sure you provide information for other users to help you. If you have not already done it, please EDIT your post and add this now:

- Your ISP and plan

- Type of connection (ADSL, ADSL2, VDSL)

- Your modem DSL stats (do not worry about posting Speedtest, we need sync rate, attenuation and noise margin)

- Your general location (or street)

- If you are rural or urban

- If you know your connection is to an exchange, cabinet or conklin

- If your connection is to a ULL or wholesale service

- If you have done an isolation test as per the link above

Most of the problems with speed are likely to be related to internal wiring issues. Read this discussion to find out more about this. Your ISP is not intentionally slowing you down today (unless you are on a managed plan). Also if this is the school holidays it's likely you will notice slower than usual speed due to more users online.

A master splitter is required for VDSL2 and in most cases will improve speeds on DSL connections. Regular disconnections can be a monitored alarm or a set top box trying to connect. If there's an alarm connected to your line even if you don't have an alarm contract it may still try to connect so it's worth checking.

I recommend you read these two blog posts:

- Is your premises phone wiring impacting your broadband performance? (very technical)

- Are you receiving a substandard ULL ADSL2+ connection from your ISP?

I am the Geekzone Robot and I am here to help. I am from the Internet. I do not interact. Do not expect other replies from me.

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doublehell

110 posts

Master Geek
+1 received by user: 1

#927860 5-Nov-2013 20:32

Modem stats look fine.

The next time you have a slowdown, do a traceroute to orcon, and try to identify where the latency is being introduced:

At the command prompt type: tracert orcon.net.nz

Also, have you tried isolation tests?

When you next get a slowdown, disconnect every device from the network, bar one that is plugged in via ethernet - see if the problem persists for that device.

Could be a rogue device saturating the network? Hard to say really...

FireEngine

1223 posts

Uber Geek
+1 received by user: 221

Trusted

#927861 5-Nov-2013 20:33

There is no general network issue that we know of. When it occurs try disconnecting all devices (wired and wireless), except one wired connection device and see if thing improve. You may just have one device downloading an update or something else (intended or not), so the first step is to isolate to one device and see if you still have the issue. Worth running a virus scan on the wired device you use too.

PM me your account name or number and I'll see if your line is seeing any line errors...

Regards FireEngine

bwen

18 posts

Geek
+1 received by user: 1

#927962 6-Nov-2013 06:36

Thanks heaps doublehell & FireEngine - those are some valid points and good suggestions!

Initially suspected it was just a wireless issue, but pings direct from modem had same response. Will do a device isolation test next time it recurs and report back with results of that. Did do some trace routes on a previous occasion but haven't go those recorded unfortunately - from memory the speed was way down right from the very first hop, but will redo that also.

Thanks again - and will update again when I have some more test results.